Don't know how i've lived without this! - Cross Armory Quick Takedown Pins

I absolutely love this quick release system. So easy to open the receiver now. It was a bit of gunsmithing to install, though, but it was so worth it. It comes with shims if the pins are too far forward of the holes, but there are no instructions on what to do if the pins don't quite reach the holes. I used my barrel lapper and lapping compound to slowly remove material from the rear of the lower receiver. You have to put the upper receiver on so the lapping tool aligns correctly. After quite a bit of lapping, I was able to get the pins to align almost perfectly. I used a takedown pin tool and a small amount of a higher grit lapping compound to smooth out and align the quick release brack with the lower pin holes. If you have the patience, I highly recommend it. Just take your time and get it aligned right. Don't just slap it on tighten it down, and expect it to work perfectly. I ordered several more for my other AR-15's as well as 2 for my AR-10's.